Hammer



C- C. SMITH. HAMMER. APPLICATION FILED MAR- 6,1920- 1,404,150. PatentedJan. 17, 1922.

2 SHEETSSHEET l- INVENTOR AITORNEY C. 0. SMITH.

HAMMER.

APPLICATION FILED MAR. e. 1920.- 1 ,404,1 50. Patented Jan. 17, 1922.

2 SHEETS-SHEET 2- czar/ 6 636 12 INVENTOR ATTORNEY CHARLES 0. SMITH, OFCLEVELAND, OIIIO.

HAMMER.

Specification of Letters Patent.

Patented Jan. 17, 1 922.

Application filed March 6, 1920. Serial No. 363,825.

To calico/r0912 it may concern Be it known that l, CHAnnEs C. SMITH, a.citizen of the United States, residing at Cleveland, in the county ofCuyahoga and State of Ohio, have invented new and useful Improvements inHammers, of which the following is a specification.

This invention relates to drop forge hammers, and comprehends theprovision of a novel construction of means for holding the gibs for theram associated with the housing in a manner, so, that the gibs can bereadily and easily moved outwardly or away from each other to permit theram to be readily separated therefrom as the occasion requires.

In hammers of the above mentioned char-- acter, stationary bolts areusually employed to hold the gibs fixed to the housing, and these boltsare frequently broken. in addition to this fact, the piston rod for theram is sometimes fractured. especially in cold weather, and the generalconstruction of the hammer is such that it necessitates the expenditureof considerable time and labor before the ram can be removed frombetween the gibs, and the hammer in its entirety properly repaired.

It is therefore the object of this invention to provide means wherebythe gibs of the ram are yieldably supported within the housing andnormally maintained properly spaced to accommodate the ram, the meansfor holding the gibs in this position being readily accessible andadjustable to permitthe gibs to move within the housing aw y from eachother when it is necessary to remove the rams from between the gibs forany purpose whatever.

The nature and advantages of the invention will be better understoodwhen the following detail description is taken in connect1on with theaccompanylng drawings, the

invention residing in the construction, com

Figure 4 is a similar view, taken on the line 41 of Figure 1.

Figure 5 is a perspective view of one of the gibs.

Flgure 6 is a perspective view of the block and wedge shaped element.

Referring to the drawings in detail, 10 in dicates the base of thestructure, and from which rises the housing 11 for the gibs 12. It isapparent that there is one of these gibs for each housing, and that theram 14 is actuated by the piston rod reciprocating between the gibs 12.As shown in Figure 5, each gih is provided with a channel 16 for thereception of the adjacent edge of the ram A. Each side of the housing ischanneled as at 17 to receive the gib 12, the channel 17 being ofsufficient dimension as to permit the gib to be moved wholly within thechannel in a manner and for a purpose to be hereinafter described.

Each side of the housing is provided with a horizontally arranged pocket18 opening at one end into the adjacent channel 17. and with atransverse bore 19 opening at the front of the housing and communicatingwith the pocket 18. A block of steel 01' other suitable materialindicated at 20 is slidably fitted within the pocket 18, one end of thisblock being perfectly flat to bear against the adjacent side of the gib12. while the opposite end of the block is bevelled as at 21. Slidablyfitted in the transverse bore 19 is an adjustable wedge 22 having athreaded stem 23 with which a nut 24 is associated. The wedge shapedside 25 of the wedge 22 bears against the inclined extremity 21 of theblock 20 as shown. A washer 26 surrounds the stem 23 and bears againstone side of the housing while interposed between the washer 26 and thenut 24 is a coiled spring 27 which functions to exert a pull upon thewedge shaped element 22, thereby causing the latter to force the block20 against the gib 12 holding the latter projected from the housing inan active position. There is preferably two of these wedge shapedmembers or blocks used for each gib, and arranged adjacent the oppositeends thereof as clearly illustrated in Figures 1 and 2. Each side of thehousing at a point eoui-distant between the wedges is'formed with anopening 28 to receive one end of a bolt 29 carried by the gib 12. Theend of the bolt 29 which 1s secured to the gib is preferably flared asat 30 and provided with a projection 31 connected with the gib in amanner to prevent rotation or slight turning of the bolt 29. Theopposite end of the bolt 29 is provided with a nut 32which is positionedwithin the opening 28. Encircling the bolt 29 is a spring 33, the latterhaving one end bearing against one wall of the opening 28 and itsopposite end bearing against the nut 32, this spring being normallyunder tension to retract the gih within the channel 17 oi 'the housingwhen the wedges 22 are adjusted to effect a release of the blocks forthis purpose. 7

In practice, should the pistonrod 15 become broken, necessitating theremoval oi the ram 14 from between the gibs 12, as a part of the pistonrod often offers considerable trouble and difficulty in the separation 7direction to Manifestly, the gibs are separated from the ram 14:, thusallowing the latter tobe easily removed from engagement for repairs.

While it is believed that from the foregoing description, the nature andadvantages of the invention will be readily apparent, I desire to haveit understood that I do not limitrmyselt to the details of constructionherein shown and described inasmuch assuch changes may be resorted towhen desired as fall within the scope of what is claimed,

Having thus described my invention what I claim as new is:

In a drop forge hammer, a base, a housing including spaced channeledmembers supportedupon said base, a gib slidably fitted in each member, aram arranged to reciprocate between said gibs, spring influenced wedgeshaped members slidably, fitted in said housing, blocks slidably fittedin said housing between said wedge shaped members and said gibs, andmeans for automatically retracting the gibs within the'housing to aninactive position when the wedges are adjusted to release said gibs.

In testimony whereof I aflix my signature.

CHARLES SMITH.

